std::ios_base::precision

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C++ Standard Library
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Input/output library
basic_streambuf basic_filebuf basic_stringbuf ios_base basic_ios basic_istream basic_ostream basic_iostream basic_ifstream basic_ofstream basic_fstream basic_istringstream basic_ostringstream basic_stringstream C-style I/O
std::ios_base
Member functions ios_base::ios_base ios_base::~ios_base Formatting ios_base::flags ios_base::setf ios_base::unsetf ios_base::precision ios_base::width Locales ios_base::imbue ios_base::getloc Internal extensible array ios_base::xalloc ios_base::iword ios_base::pword Miscellaneous ios_base::register_callback ios_base::sync_with_stdio Member classes ios_base::failure ios_base::Init Member types ios_base::openmode ios_base::fmtflags ios_base::iostate ios_base::seekdir ios_base::event ios_base::event_callback

​streamsize precision() const;​	(1)
​streamsize precision( streamsize new_precision );​	(2)

Manages the precision (i.e. how many digits are generated) of certain numeric output conversions.

1) Returns the current precision.

2) Sets the precision to the given one.

Contents 1 Parameters 2 Return value 3 Example 4 See also

Parameters

new_precision

-

new precision setting

Return value

the precision before the call to the function

Example

This section is incomplete

See also

width	manages field width (public member function)